33 



4.— EPIMEDIUM. 



1. E. sagittatum, Baker in Gard. Chron. (1880) xiii. 683 

 Lienchow River. Fl. white, March. 



5.— PODOPHYLLUM. 



1. P. versipelle, Hance in Journ. Bot. 1883 362. Lofoushan. 

 FI. dark red, May. 



NYMPHAEACEAE, 



1.— EUR YALE. 



1. E. ferox, Salisb.; DC. Prodr. i. 114. West River. Fl. violet, 

 August. 



PAPAVERACEAE. 



Key to genera. 



1. Flowers single, regular ... ... 2. 



Flowers racemose, irregular 3. Corydalis. 



2. Plant prickly 2. Argemone. 



Plant unarmed 1. Papaver. 



1.— PAP AVER. 



1. P. somniferum, Linn.; DC. Prodr. i. 119. Fallow fields, 

 Swatow. Fl. white, April. 



S.— ARGEMONE. 



1. A. mexicana, Linn. ; Benth. Fl. Hongk. 15. On roadsides and 

 waste places, Hongkong, Fl. yellow. May. 



3.— OORYDALIS. 



Key to species. 



Flowers yellow I. pallida. 



Flowers white and purple ... ... 2. suaveolens. 



1. C. pallida, Pers.; DC. Prodr. i. 129. North River; river bank 



near Chaochaufu. Fl. golden yellow, March. 



2. C. suaveolens, Hance in Journ. Bot. 1880, 258. North River. 



Fl. white and purple, January. 



CRUCIFERAE. 

 Key to genera. 



1. Pods with a conspicuous beak ... 2. 

 Beak none or small ... •■• ••• 3. 



2, Pods ovoid-oblong 4. Eruca. 



Pods linear 4. 



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